Little Boy Lake (DNR #11-0167) has 1372 surface acres and 467 littoral acres and is classified as DNR lake class 22. Maximum depth is 74 feet and shoreline length is 10.02 miles. The lake was mapped in July, 1953. There is a DNR maintained public access on the south end of the lake. The most recent DNR fisheries lake survey was completed in July, 2012 (previously surveyed in 2008 and 2006 and various other prior years).
The DNR Fisheries Management Plan for Little Boy Lake:
Prior to 2006, walleye stocking was scheduled for fry stocking every three years (this schedule was not always followed). When the gill netting was completed in 2005 it was determined the walleye fishery was in trouble (CPUE counts were at historic lows). With the assistance of the Walker Area Walleye Coalition in 2006, we improved the walleye stocking on Little Boy from stocking fry every three years to every two years. Gill netting was performed again in 2006 to see if the walleye fishery problems still continued (final results of that survey were not available until spring of 2007). The fishery was still not where it should be so in 2008, we again improved the stocking program to include annual fry stocking and "contingency stocking" of fingerlings - see the DNR Fisheries Management Plans for full information on the new stocking program. In 2011, we reviewed stocking results and because it appears the fry stocking is working well, the DNR agreed to extend our current stocking plan through 2015.
2014 Update - we agreed to another new stocking plan. This one goes back to every other year stocking so the DNR can assess natural reproduction. This new plan will stock 932,000 fry (2,000 fry/littoral acre) in the even numbered years. We will continue the fall electro-fishing to monitor how the Young of the Year (YOY) have fared. If the electro-fishing reports 1-15 YOY/hour, we will stock fingerlings at 2 lbs/acre, 15-29 YOY/hour = 1 lbs/acre and over 30 YOY/hour = no additional fingerling stocking needed. We would need to have reduced YOY counts for 2 years in a row for the additional stocking to occur. Gill net assessments will be on a 3 year basis starting in 2015 and the lake management fisheries plan will updated in 2021.
Recent stocking on Little Boy Lake:
2015 Gill Net Results
The DNR completed gill netting the week of June 29-July 3. Final results won't be available until 2016 spring. Here is the preliminary report.
2012 Gill Net Results
Gill netting was completed the week of July 8, 2012. The preliminary results are in the report below. Final results will be available sometime this next winter. It appears we have more walleyes (which is good) but they are smaller (not necessarily good). Also below is a report from the electrofishing completed in the fall of 2012. The electrofishing shows our Young Of the Year counts are good and sizes are good as well.
2008 Gill Net Results
A population assessment by gill netting was completed the week of July 21-25, 2008. Various members of our association were on hand to witness the lifting of the gill nets and some went to Walker to witness the weighing, measuring and sexing of the fish. Members included: Bud Anderson, John Happe, Randy Helland, and Ron Stokesbary. Many thanks to these members for their time.
(photo by Ron Stokesbary)
We have the preliminary report in PDF format. The final full report will be completed in the winter after the DNR does the aging of the fish. Click the link below for the DNR's preliminary report.
On October 1, 2008, the DNR performed electrofishing targeting Young of the Year walleye (YOY). They counted 51.7 YOY/hour, which is actually quite good. This level of YOY will not trigger the contingency stocking discussed above. Randy Helland was along on the electrofishing runs. Click on the link below for the DNR's preliminary report.
On October 22, 2009, the DNR again performed electrofishing targeting Young of the Year (YOY) walleye. They counted 33 YOY/hour. Randy H was again along on the electrofishing run. Click the link below for the DNR's preliminary report.
On September 29, 2010, the DNR electrofished targeting YOY walleye. They counted 67/hour. The preliminary report will be posted as soon as it is available.
Little Boy - 2008 - Little Boy Counts per Net
In the chart below, the blue line represents walleye counts per net. You can see the 2005 and 2006 counts were some of the lowest since 1955. This is the reason we asked the DNR to go to a every other year fry stocking program in 2006. In 2007-2008, we asked the DNR to further alter the Little Boy stocking program (see the DNR Lake Plans tab for full information).
The CPUE (Catch Per Unit of Effort- which in this case is number of walleyes per net) is shown in the graph below.
The mean length and weight are shown below for the walleye fishery:
The PSD and RSD-P measure the size structure of a fishery and the relative weights also indicate fishery size structure.
Gill net Results - July 2008
This chart shows the length frequency of walleye taken in the last four gill nettings.
The data for 2006 shows a high number of 12-14 inch fish, but not many other size fish. In the age frequency data (which is not shown here) it was found that 66% of the netted walleyes were from one year class - the 2003 year class (which was a stocked year). This is part of the reason we asked for the "contingency stocking" program.
The DNR completed gill netting the week of July 21, 2008. The graph shows a couple of interesting points.
1. Most of the larger walleyes are gone.
2. Fry were stocked in 1999 and had grown to about 10-13 inch fish in 2002. Fry were stocked in 2003 and had grown to about 10-13 inch fish in 2006. Fry were stocked in 2006 and had grown to about 10-13 inch fish in 2009. Please note the 2005 data (non-stocked year) shows very few 10-13 inch fish. It appears that stocking fry works well in Little Boy Lake.
This chart show the length frequency of Northern Pike. Please note in 2002, there were no northern greater than 25 inches. The Protected Slot Limit (PSL) of 24-36" was implemented in 2003 and in 2005, 2006 and 2008, northern are being caught in the PSL range with 2008 showing marked improvement in northern fishery size. It appears the northern Protected Slot Limit is working well.
This chart shows the length frequency of perch.